You can't down vote a submission. You can flag it but I don't think that should be used for distaste. The best you can do is: don't vote, don't comment and let

You can't down vote a submission. You can flag it but I don't think that should be used for distaste. The best you can do is: don't vote, don't comment and let time do the work. I don't think comments influence ranking but your comment will certainly give the article more visibility. People will want to judge for themselves. Some may disagree with you and upvote it. This has been the way for many years and it has worked well for that length of time.